CN117759631B - Bearing convenient to accurate filling lubricating grease - Google Patents
Bearing convenient to accurate filling lubricating grease Download PDFInfo
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- CN117759631B CN117759631B CN202410197387.8A CN202410197387A CN117759631B CN 117759631 B CN117759631 B CN 117759631B CN 202410197387 A CN202410197387 A CN 202410197387A CN 117759631 B CN117759631 B CN 117759631B
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- grease
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- 239000004519 grease Substances 0.000 title claims abstract description 112
- 230000001050 lubricating effect Effects 0.000 title claims abstract description 46
- 238000007789 sealing Methods 0.000 claims abstract description 199
- 238000007599 discharging Methods 0.000 claims description 25
- 230000002093 peripheral effect Effects 0.000 claims description 17
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 150000002632 lipids Chemical class 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- Rolling Contact Bearings (AREA)
Abstract
The application discloses a bearing convenient for accurately filling lubricating grease, and relates to the field of bearings, and the bearing comprises an inner ring, an outer ring, rollers, a retainer and a sealing ring, wherein the rollers are arranged in an inner cavity of the bearing, the sealing ring is arranged in the outer ring, a gap exists between the sealing ring and the inner ring, a plurality of sliding grooves are formed in the inner wall of the outer ring, a plurality of sliding blocks are arranged on the sealing ring, the sliding blocks are arranged in the sliding grooves in a sliding manner, and the sliding grooves are obliquely formed towards the middle part of the inner ring; an indication arrow is arranged on the end wall of the outer ring, a marked scale is arranged on the side wall of the sealing ring, and the indication arrow points to the marked scale. According to the application, the sliding block and the sliding groove are utilized, so that the two sealing rings can move along the mutual approaching direction while rotating, the bearing inner cavity is extruded, gas and redundant lubricating grease in the bearing inner cavity are extruded from the gap, and then the residual amount of the lubricating grease in the inner cavity is judged through the comparison of the indication arrow and the marked scale, so that the specified amount of lubricating grease can be accurately filled in the bearing inner cavity.
Description
Technical Field
The application relates to the field of bearings, in particular to a bearing convenient for precisely filling lubricating grease.
Background
The bearing is an important mechanical part, is mainly used for supporting a rotating shaft or a moving part, reduces friction and abrasion of the rotating shaft or the moving part, realizes efficient motion transmission, and directly influences the stability and reliability of mechanical equipment.
At present, the bearing comprises inner circle, outer lane, roller, holder and sealing washer, and a plurality of rollers roll and install between inner circle and outer lane, and the holder is installed on a plurality of rollers for the relative position between a plurality of rollers remains stable, and two sealing washers are installed on the outer lane inner wall and shelter from the space between outer circle and the inner circle, prevent dust or foreign matter entering in the bearing.
Before the sealing ring is installed, grease is required to be filled in the inner cavity of the bearing, and sufficient grease is required for reducing abrasion and friction in normal operation of the bearing, so that the control of the filling amount of the grease of the bearing is important. The amount of grease to be filled into the bearing under different use environments (such as different rotation speeds or different temperatures) is also different, and is usually between 20 and 50 percent of the space in the inner cavity of the bearing. However, the grease is manually filled, the filling amount of the grease is difficult to accurately control, and if the filling amount of the grease is insufficient, the lubrication of the bearing is insufficient, friction and abrasion are caused, so that the normal operation of equipment is affected; if the filling amount of the grease is too large, the running resistance of the bearing is increased, the bearing is damaged, and the service life of the bearing is shortened.
Disclosure of Invention
In order to facilitate accurate filling of specified amounts of grease in an inner cavity of a bearing, the application provides a bearing which facilitates accurate filling of grease.
The bearing convenient for accurately filling lubricating grease provided by the application adopts the following technical scheme:
The bearing comprises an inner ring, an outer ring, rollers, a retainer and a sealing ring, wherein the rollers are arranged in an inner cavity between the inner ring and the outer ring, the retainer is arranged on the rollers, two sealing rings are arranged at two ends of the inner wall of the outer ring, gaps exist between the sealing ring and the outer peripheral wall of the inner ring, a plurality of sliding grooves are formed in the inner peripheral wall of the outer ring at intervals, a plurality of sliding blocks are arranged on the outer peripheral side of the sealing ring, the sliding blocks are respectively arranged in the sliding grooves in a sliding mode, the sliding grooves are obliquely arranged along the axial direction and the circumferential direction of the outer ring, one end of each sliding groove is close to the circumferential end wall of the outer ring, and the other end of each sliding groove is close to the corresponding roller;
The bearing inner cavity is filled with lubricating grease with the capacity of more than 50% of the inner cavity, when the sliding block slides in the sliding groove, the sliding block drives the sealing ring to rotate by taking the axis of the outer ring as a rotating shaft, the sliding block drives the sealing ring to move towards the middle part of the outer ring along the axis direction of the outer ring, and when the sealing ring rotates and moves, air in the inner cavity is extruded from a gap, and then redundant lubricating grease in the inner cavity is extruded from the gap;
The end wall of the outer ring in the axial direction is provided with an indication arrow, the outer side wall of the sealing ring far away from the roller is provided with a plurality of mark scales along the circumferential direction of the sealing ring, the mark scales respectively represent 100-20% of the filling quantity of lubricating grease in the inner cavity, the indication arrow points to the mark scales, when the sliding block enters the sliding groove, the indication arrow points to the mark scales of 100%, when the sliding block slides in the sliding groove, the indication arrow points to the mark scales of 100-20% in sequence, and when the sliding block slides to the end part of the sliding groove, the indication arrow points to the mark scales of 20%.
Through adopting above-mentioned technical scheme, when bearing filling lubricating grease, fill more than 50% lubricating grease in the inner chamber earlier, install two sealing washer in the both sides of outer lane inner wall again, and make the slider on every sealing washer all install in the spout, only arrow point 100% mark scale this moment, two sealing rings are rotated in step, the sealing washer drives the slider and slides in the spout, the slider still can drive two sealing rings and move towards mutually approaching the direction when sliding, at this moment, two sealing rings extrude the air in the bearing inner chamber from the clearance between sealing washer and the inner circle, after the air is extruded, the sealing washer extrudees the lubricating grease in the inner chamber from the clearance again, the sealing washer rotates the in-process, the mark scale that the instruction arrow points constantly changes and corresponds the filling quantity of lubricating grease in the inner chamber, rotate the sealing washer to the assigned position, make the mark scale department that indicates the arrow point to required filling quantity, can make accurate filling of pointing quantity lubricating grease in the bearing inner chamber, make the life of bearing longer.
Preferably, a sealing component is arranged on the side wall of the sealing ring and used for sealing or opening the gap, a plurality of grease discharging holes are formed in the sealing ring, and a plurality of sealing pins used for sealing the grease discharging holes are detachably inserted on the sealing ring.
Through adopting above-mentioned technical scheme, use the closure assembly to open the clearance, rotate the air in the sealing washer evacuation inner chamber, reuse closure assembly shutoff clearance, extract the seal pin, continue to rotate the sealing washer, the grease in the bearing inner chamber is discharged the inner chamber from the grease discharging hole. So set up, the grease is followed the grease discharging hole and is discharged the bearing inner chamber to the clearance is carried out to the grease of being convenient for to the exhaust.
Preferably, the seal assembly comprises a driving rod, a plurality of rotating shafts and a sealing plate, wherein the rotating shafts are arranged on the side wall of the sealing ring in a equidistant manner along the circumferential direction of the sealing ring, the sealing plate is fixedly arranged on the rotating shafts, the sealing plates are sequentially arranged along the circumferential direction of the sealing ring, two adjacent sealing plates are abutted to each other in the lateral wall of the sealing ring, the driving rod rotates to penetrate through the sealing ring and is fixedly connected with one rotating shaft, the driving rod drives the sealing plate to rotate through the rotating shafts, the sealing plates are abutted to each other and synchronously rotate, and the sealing plates rotate to abut against the peripheral wall of the inner ring and seal gaps.
Through adopting above-mentioned technical scheme, rotate the actuating lever, the actuating lever drives a shrouding through a pivot and rotates, and this shrouding drives all shrouding synchronous rotations again, when the shrouding rotates towards being close to the inner circle direction, can block up the clearance, and when the shrouding rotates towards keeping away from the inner circle direction, can open the clearance.
Preferably, an elastic reset piece is arranged on the rotating shaft, when the driving rod is rotated, the driving rod drives the sealing plate to rotate through the rotating shaft and enables the gap to be opened, the sealing plate acts on the elastic reset piece and enables the elastic reset piece to deform, and when the driving rod is loosened, the elastic reset piece acts on the sealing plate, and the sealing plate rotates and enables the gap to be blocked.
Through adopting above-mentioned technical scheme, when exhausting to bearing inner chamber, rotate the actuating lever, the actuating lever drives the shrouding through the pivot and rotates for the clearance is opened, when the bearing inner chamber is carried out the fat removal, loosens the actuating lever, and elastic reset piece acts on the shrouding, makes the clearance automatic shutoff, thereby is convenient for carry out the fat removal, and simultaneously, when the bearing is not used, the clearance of bearing is in the shutoff state all the time, thereby makes dust or foreign matter be difficult for getting into in the bearing inner chamber from the clearance.
Preferably, one end of the sealing plate far away from the rotating shaft is provided with a balancing weight for automatically opening a gap when the bearing rotates.
Through adopting above-mentioned technical scheme, when the bearing rotates, the balancing weight drives the shrouding under the effect of centrifugal force and rotates for the bearing clearance is opened, and at this moment, bearing inner chamber and external atmosphere intercommunication, thereby the bearing inner chamber heat dissipation of being convenient for. When the bearing stops rotating, the bearing gap can be automatically closed under the action of the elastic reset piece.
Preferably, a push rod is arranged on the side wall of the sealing ring, and the push rod and the driving rod are symmetrically arranged by taking the center of the sealing ring as a symmetrical point.
Through adopting above-mentioned technical scheme, when rotating sealing washer fat discharge, because the mobility of lubricating grease is relatively poor, consequently only can rotate the sealing washer with great power that needs to use, through push rod and the actuating lever that use the symmetry to the sealing washer of being convenient for rotates.
Preferably, the inner ring is rotated in the same direction or in different directions when the sealing ring is rotated and the grease is discharged at the gap or the grease discharging hole.
Through adopting above-mentioned technical scheme, rotate the inner circle simultaneously at the in-process that carries out the fat removal, the inner circle rotates the in-process and can have certain adsorption to the lubricating grease for the lubricating grease moves towards roller and inner circle contact position, thereby is convenient for further get rid of the bubble in the lubricating grease.
Preferably, the end wall of the outer ring in the axial direction is provided with a mounting groove, the mounting groove is communicated with the end part of the sliding groove, and the sliding block is arranged in the sliding groove in a sliding manner through the mounting groove.
Through adopting above-mentioned technical scheme, the sealing washer is in the installation, in the slider installation that can be convenient for the sealing washer through the mounting groove gets into the spout to make the sealing washer installation more convenient and fast.
Preferably, the sliding block is an elastic block, a clamping strip is arranged on one side, close to the mounting groove, of the inner side wall of the sliding groove, when the sliding block moves to the clamping strip, the clamping strip abuts against the sliding block in the sliding groove, and when the sealing ring continues to drive the sliding block to move, the sliding block moves through the clamping strip.
Through adopting above-mentioned technical scheme, the sealing washer drives the slider and removes through the card strip in rotating the installation, after accomplishing the fat removal, reverse rotation sealing washer, and the sealing washer drives the slider and removes to card strip department, and card strip supports the slider tightly in the spout this moment to fix the sealing washer.
Preferably, the retainer comprises a first frame body, a second frame body and a plurality of fixing pieces, the fixing pieces are fixedly connected with the first frame body and the second frame body, a plurality of arc-shaped portions used for limiting the rollers are formed on the first frame body and the second frame body, an avoidance hole is formed in the end portion, along the axis direction of the outer ring, of the arc-shaped portions, and the rollers are located in the avoidance hole.
Through adopting above-mentioned technical scheme, after the inner chamber at the bearing is installed to the roller, use mounting with first support body and second support body fixed connection, carry out spacing to the roller after the arc portion on first support body and the second support body makes up for the relative position between a plurality of rollers remains stable, and dodges the hole of seting up on the arc portion, reduced the width of holder along outer lane axis direction, thereby can increase the removal stroke of sealing washer along outer lane axis direction, be convenient for arrange the lubricating grease in the bearing inner chamber to 20%.
In summary, the present application includes at least one of the following beneficial technical effects:
1. The sliding blocks and the sliding grooves are utilized, so that the sealing rings can rotate in the outer ring, and the two sealing rings can move along the direction close to each other while rotating, so that the inner cavity of the bearing is extruded, gas and redundant lubricating grease in the inner cavity of the bearing are extruded from the gap, and then the residual quantity of the lubricating grease in the inner cavity is judged by comparing the indication arrow with the marked scales, so that the specified quantity of lubricating grease can be accurately filled in the inner cavity of the bearing, and the service life of the bearing is longer;
2. The sealing assembly is used for opening a gap, the sealing assembly is used for rotating the sealing ring to discharge air in the inner cavity, the sealing assembly is used for sealing the gap, the sealing pin is pulled out, the sealing ring is continuously rotated, lubricating grease in the inner cavity of the bearing is discharged from the grease discharging hole to the inner cavity of the bearing, and therefore the lubricating grease is discharged from the grease discharging hole to the inner cavity of the bearing, and the discharged lubricating grease is convenient to clean;
3. Through adopting elasticity reset piece and balancing weight for when the bearing rotated, the clearance was automatic to be opened, the bearing inner chamber heat dissipation of being convenient for, and when the bearing stopped rotating, clearance self-closing, thereby make dust or foreign matter be difficult for getting into in the bearing inner chamber from the clearance.
Drawings
FIG. 1 is a schematic view showing the overall structure of a bearing in which grease is easily and accurately filled in embodiment 1 of the present application;
FIG. 2 is an exploded view showing the overall structure of a bearing in which grease is easily and precisely filled in example 1 of the present application;
FIG. 3 is an enlarged schematic view of the application at A in FIG. 2;
FIG. 4 is a cross-sectional view of a portion of a bearing in embodiment 1 of the present application, which is convenient for precisely filling grease, as a protruding display chute;
FIG. 5 is an enlarged schematic view of the application at B in FIG. 4;
FIG. 6 is a schematic view showing the overall structure of a bearing in which grease is easily and precisely filled in embodiment 2 of the present application;
fig. 7 is a schematic forward view of a part of the structure of the bearing in embodiment 2 of the present application, which is convenient for precisely filling grease, as a protruding seal ring;
Fig. 8 is a schematic view showing the reverse direction of the structure of a part of the bearing for showing the sealing ring in a protruding manner, which is convenient for precisely filling the grease in the embodiment 2 of the present application;
Fig. 9 is a schematic view showing a part of the structure of a seal assembly for a bearing which facilitates accurate grease filling in embodiment 2 of the present application.
Reference numerals: 1. an inner ring; 2. an outer ring; 3. a roller; 4. a retainer; 41. a first frame body; 42. a second frame body; 43. a fixing member; 5. a seal ring; 6. an inner cavity; 7. a gap; 8. a chute; 9. a slide block; 10. an indication arrow; 11. marking a scale; 12. a closure assembly; 121. a driving rod; 122. a rotating shaft; 123. a sealing plate; 13. a lipid discharging hole; 14. a seal pin; 16. an elastic reset piece; 17. balancing weight; 18. a push rod; 19. a mounting groove; 20. clamping strips; 21. avoidance holes; 22. an arc-shaped portion; 23. a raceway.
Detailed Description
The application is described in further detail below with reference to fig. 1-9.
The embodiment of the application discloses a bearing convenient for accurately filling lubricating grease.
Example 1
Referring to fig. 1 and 2, a bearing for facilitating accurate filling of grease includes an inner ring 1, an outer ring 2, a plurality of rollers 3, a cage 4, and two seal rings 5. Annular rollaway nest 23 is set on the outer circumference side wall of inner ring 1 and the inner circumference side wall of outer ring 2, in the application, rollers 3 can be steel balls, and a plurality of rollers 3 are installed in rollaway nest 23 of inner ring 1 and outer ring 2.
Referring to fig. 2 and 3, the retainer 4 includes a first frame 41, a second frame 42, and a fixing member 43, where the first frame 41 is in a ring shape, a plurality of arc portions 22 are formed on the first frame 41 along the circumferential direction of the first frame at equal intervals, the protruding end of each arc portion 22 along the axial direction of the outer ring 2 is provided with a avoiding hole 21, and the number of the arc portions 22 is the same as that of the rollers 3.
The first frame 41 and the second frame 42 have the same structure and are symmetrically arranged along the axial direction of the outer ring 2, in the application, the fixing piece 43 can be a rivet, and the fixing piece 43 fixedly connects the first frame 41 and the second frame 42. The corresponding arc-shaped parts 22 on the first frame 41 and the second frame 42 surround the rollers 3, so that the relative positions among the rollers 3 are kept stable, and the two ends of the rollers 3 along the axial direction of the outer ring 2 are respectively positioned in the avoidance holes 21 of the first frame 41 and the second frame 42.
Referring to fig. 1 and 2, an annular inner cavity 6 is formed on the inner peripheral side of the outer ring 2 and the outer peripheral side of the inner ring 1, the roller 3 is located in the inner cavity 6, two seal rings 5 are mounted on the inner peripheral side of the outer ring 2 in the axial direction of the outer ring 2, the two seal rings 5 are located on both sides of the roller 3 in the axial direction of the outer ring 2, the seal rings 5 are located in the inner cavity 6, and an annular gap 7 exists between the inner peripheral side of the seal rings 5 and the outer peripheral side of the inner ring 1. In the application, the sealing ring 5 can be a rubber ring.
Referring to fig. 2 and 4, three sliding blocks 9 are fixedly mounted on the outer peripheral side of each sealing ring 5 at equal intervals along the circumferential direction of the sealing ring, six sliding grooves 8 are symmetrically formed on the inner peripheral wall of the outer ring 2 on two sides of the rolling path 23, three sliding grooves 8 on one side of the rolling path 23 are formed at equal intervals along the circumferential direction of the outer ring 2, and three sliding blocks 9 on one sealing ring 5 are respectively and slidably mounted in three sliding grooves 8 on one side of the rolling path 23 in the outer ring 2. The chute 8 is inclined in the axial direction and the circumferential direction of the outer ring 2, and one end of the chute 8 is close to the circumferential end wall of the outer ring 2, and the other end is close to the raceway 23. In the application, the sliding block 9 and the sealing ring 5 can be made of rubber material by integral molding.
Referring to fig. 1 and 5, three mounting grooves 19 are provided at equal intervals in the circumferential direction of the outer ring 2 on both end walls in the axial direction of the outer ring 2, and the six mounting grooves 19 are respectively communicated with one ends of the six sliding grooves 8 near the end wall of the outer ring 2. When the sealing ring 5 is installed, the sealing ring 5 drives the sliding block 9 to move, and the sliding block 9 can enter the sliding groove 8 through the installation groove 19, so that the sealing ring 5 is installed in the outer ring 2.
Referring to fig. 2 and 4, before the seal rings 5 are installed, grease is filled in the inner cavity 6 of the bearing, the filling amount of the grease is more than 50% of the capacity of the inner cavity 6, and after the grease is filled, the two seal rings 5 are installed in the outer ring 2. The two sealing rings 5 are rotated, the sealing rings 5 drive the sliding blocks 9 to slide in the sliding grooves 8, the sliding grooves 8 formed in an inclined mode guide the movement of the sliding blocks 9, the sliding blocks 9 slide along the circumferential direction of the outer ring 2 and gradually slide towards the sliding direction, and then the sealing rings 5 can move along the axial direction of the outer ring 2 while rotating in the outer ring 2.
Simultaneously, the two sealing rings 5 are rotated, the two sealing rings 5 move towards the direction of the roller 3, so that air and lubricating grease in the bearing inner cavity 6 can be extruded, the air in the inner cavity 6 is extruded first and is discharged from the gap 7 between the sealing rings 5 and the inner ring 1, and after the air is discharged, the lubricating grease in the inner cavity 6 is extruded again and is discharged from the gap 7.
Referring to fig. 1, the two end walls of the outer ring 2 in the axial direction are both provided with indication arrows 10 pointing to the sealing ring 5, the side wall of the sealing ring 5 far away from the roller 3 is provided with a plurality of mark scales 11 along the circumferential direction, and the mark scales 11 respectively represent 100-20% of the filling quantity of the lubricating grease in the inner cavity 6. When the slider 9 is mounted into the chute 8, the pointing arrow 10 points to the marked scale 11 of 100%; when the slide block 9 slides in the slide groove 8, the indication arrow 10 points to the mark graduation 11 of 100% to 20% in sequence; when the slider 9 is slid to the end of the chute 8 near the raceway 23, the pointing arrow 10 points to the 20% mark scale 11.
In the rotating process of the sealing ring 5, the marked scale 11 pointed by the indicating arrow 10 is continuously changed and corresponds to the filling quantity of the lubricating grease in the inner cavity 6, and the sealing ring 5 is rotated to a specified position, so that the marked scale 11 pointed by the indicating arrow 10 is pointed at the required filling quantity, the bearing inner cavity 6 can be accurately filled with the specified quantity of the lubricating grease, and the service life of the bearing is longer.
Simultaneously, when the sealing ring 5 is rotated and grease is discharged at the gap 7, the inner ring 1 is rotated in the same direction or in different directions. The inner ring 1 can have certain adsorption to the lubricating grease in the rotation process, so that the lubricating grease moves towards the contact position of the roller 3 and the inner ring 1, and bubbles in the lubricating grease can be removed, so that the filling amount of the lubricating grease is more accurate.
Referring to fig. 5, the outer ring 2 is fixedly provided with a clamping strip 20 on the side wall of each chute 8 near one end of the mounting groove 19, and two ends of the clamping strip 20 along the length direction of the chute 8 are sloping surfaces. When the sealing ring 5 rotates and drives the sliding block 9 to move to the clamping strip 20 of the sliding groove 8, the clamping strip 20 extrudes the sliding block 9 and deforms the sliding block 9, at the moment, the sliding block 9 is abutted in the sliding groove 8, the sealing ring 5 continues to rotate, and the sealing ring 5 drives the sliding block 9 to continue to move, so that the sliding block 9 can move through the clamping strip 20 and continue to slide in the sliding groove 8. After the bearing inner cavity 6 finishes grease discharging, the sealing ring 5 is reversely rotated, and the sealing ring 5 drives the sliding block 9 to move to the clamping strip 20 again, so that the sliding block 9 is abutted and fixed in the sliding groove 8, and the sealing ring 5 is further fixed in the outer ring 2.
The implementation principle of the bearing convenient for accurately filling lubricating grease in the embodiment of the application is as follows: the bearing inner cavity 6 is filled with more than 50% of lubricating grease, two sealing rings 5 are arranged in the outer ring 2, the two sealing rings 5 are rotated, the sealing rings 5 drive a sliding block 9 to slide in a sliding groove 8, the sealing rings 5 can move along the axial direction of the outer ring 2 while rotating in the outer ring 2, when the sealing rings 5 rotate and move, firstly, air in the inner cavity 6 is extruded from a gap 7, then redundant lubricating grease in the inner cavity 6 is extruded from the gap 7, in the rotating process of the sealing rings 5, mark scales 11 pointed by an indication arrow 10 continuously change and correspond to the filling quantity of the lubricating grease in the inner cavity 6, the sealing rings 5 are rotated to a specified position, the indication arrow 10 points to the mark scales 11 of the required filling quantity, and therefore the lubricating grease with the specified quantity can be accurately filled in the inner cavity 6 of the bearing, and the service life of the bearing is longer.
Example 2
Referring to fig. 6 and 7, this embodiment is different from embodiment 1 in that a closing member 12 is mounted on the side wall of the seal ring 5 adjacent to the roller 3, and the gap 7 between the seal ring 5 and the inner ring 1 can be closed or opened by using the closing member 12. Two grease discharging holes 13 are formed in the sealing ring 5 by taking the circle center of the sealing ring as a symmetrical point, and sealing pins 14 are detachably inserted and installed at the positions of the two grease discharging holes 13 of the sealing ring 5. The sealing pin 14 is pulled out to open the grease discharging hole 13, and the sealing pin 14 is inserted to close the grease discharging hole 13.
When the bearing inner cavity 6 is exhausted, the gap 7 is opened by using the sealing component 12, and when the sealing ring 5 rotates, the air in the inner cavity 6 is exhausted from the gap 7; when the bearing inner cavity 6 is subjected to grease discharging, the sealing assembly 12 is used for sealing the gap 7 and extracting the sealing pin 14, and when the sealing ring 5 rotates, grease in the inner cavity 6 is discharged from the grease discharging hole 13, so that the discharged grease is convenient to clean. When the seal ring 5 rotates, the inner ring 1 rotates at the same time, so that bubbles in the grease can be further discharged from the grease discharging hole 13.
Referring to fig. 7,8 and 9, specifically, the closing assembly 12 includes a driving rod 121, a plurality of rotating shafts 122 and sealing plates 123, the plurality of rotating shafts 122 are installed on the side wall of the sealing ring 5, which is close to the roller 3, in a equidistant rotation manner along the circumferential direction of the sealing ring 5, the plurality of sealing plates 123 are respectively fixedly installed on the plurality of rotating shafts 122, the plurality of sealing plates 123 are sequentially arranged along the circumferential direction of the sealing ring 5, and two side walls of each sealing plate 123 along the width direction of the sealing plate are respectively abutted against the side wall of the last sealing plate 123. The driving rod 121 passes through the sealing ring 5 along the axial direction of the sealing ring 5, one end of the driving rod 121 extends out of one side of the sealing ring 5 away from the roller 3, and the other end is fixedly connected with the end part of one rotating shaft 122.
The driving rod 121 is rotated, the driving rod 121 drives a sealing plate 123 to rotate through a rotating shaft 122, the sealing plate 123 drives a plurality of sealing plates 123 to synchronously rotate, and when the sealing plate 123 rotates towards the direction close to the inner ring 1, the outer side walls of the plurality of sealing plates 123 in the length direction are abutted against the outer peripheral wall of the inner ring 1, so that the gap 7 can be blocked; when the seal plates 123 are rotated in a direction away from the inner race 1, the outer side walls of the plurality of seal plates 123 in the longitudinal direction are separated from the outer peripheral wall of the inner race 1, so that the gap 7 can be opened.
The side wall of the sealing ring 5 far away from the roller 3 is fixedly provided with a push rod 18, the push rod 18 and the driving rod 121 are symmetrically arranged by taking the circle center of the sealing ring 5 as a symmetrical point, and the connecting line of the push rod 18 and the driving rod 121 is perpendicular to the connecting line of the two grease discharging holes 13. In the process of rotating and discharging grease, the sealing ring 5 is required to be rotated by using a large force due to poor flowability of the grease, and the sealing ring 5 is convenient to rotate by using the symmetrically arranged push rod 18 and the driving rod 121.
The end of each sealing plate 123 remote from the rotating shaft 122 is fixedly provided with a balancing weight 17. When the bearing rotates, the outer ring 2 drives the sealing ring 5 to rotate, the sealing ring 5 drives the sealing plate 123 to rotate, the sealing plate 123 drives the balancing weight 17 to rotate, and because the balancing weight 17 is located at one end of the sealing plate 123 far away from the rotating shaft 122, when the sealing plate 123 rotates, the balancing weight 17 drives the sealing plate 123 to rotate towards the direction far away from the inner ring 1 under the action of centrifugal force, so that the bearing gap 7 is opened. At this time, the bearing inner cavity 6 is communicated with the outside atmosphere, thereby facilitating heat dissipation of the bearing inner cavity 6.
An elastic restoring member 16 is sleeved on each rotating shaft 122, in the application, the elastic restoring member 16 can be a torsion spring, one end of the elastic restoring member 16 is fixedly connected with the sealing ring 5, and the other end is fixedly connected with the sealing plate 123. When the bearing cavity 6 is exhausted, the driving rod 121 is rotated to enable the gap 7 to be opened, and at the moment, the sealing plate 123 is rotated and drives the elastic reset piece 16 to deform; when the bearing cavity 6 is subjected to grease discharging, the driving rod 121 is loosened, and the elastic reset piece 16 releases elastic potential energy and drives the sealing plate 123 to reversely rotate and reset, so that the gap 7 is automatically plugged, and the grease discharging is facilitated.
Meanwhile, when the bearing rotates, the balancing weight 17 drives the sealing plate 123 to rotate, the sealing plate 123 drives the elastic resetting piece 16 to deform, and when the bearing stops rotating, the elastic resetting piece 16 releases elastic potential energy and drives the sealing plate 123 to reversely rotate and reset, so that the gap 7 is automatically plugged, and dust or foreign matters are not easy to enter the bearing inner cavity 6 from the gap 7.
The implementation principle of the embodiment 2 is as follows: when the bearing inner cavity 6 is exhausted, the driving rod 121 is rotated to open the gap 7, and when the sealing ring 5 is rotated, air in the inner cavity 6 is exhausted from the gap 7; when the bearing inner cavity 6 is subjected to grease discharging, the driving rod 121 is loosened, the sealing pin 14 is pulled out, the elastic reset piece 16 acts on the sealing plate 123, the gap 7 is automatically closed, and when the sealing ring 5 rotates, grease in the inner cavity 6 is discharged from the grease discharging hole 13, so that the discharged grease is conveniently cleaned.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (10)
1. The utility model provides a bearing convenient to accurate filling lubricating grease, including inner circle (1), outer lane (2), roller (3), holder (4) and sealing washer (5), a plurality of rollers (3) set up in inner chamber (6) between inner circle (1) and outer lane (2), and holder (4) set up on a plurality of rollers (3), and two sealing washer (5) set up the both ends at outer lane (2) inner wall, and there is clearance (7) between sealing washer (5) and inner circle (1) peripheral wall, its characterized in that: a plurality of sliding grooves (8) are formed in the inner peripheral wall of the outer ring (2) at intervals, a plurality of sliding blocks (9) are arranged on the outer peripheral side of the sealing ring (5), the sliding blocks (9) are respectively arranged in the sliding grooves (8) in a sliding manner, the sliding grooves (8) are obliquely formed in the axial direction and the circumferential direction of the outer ring (2), one end of each sliding groove (8) is close to the circumferential end wall of the outer ring (2), and the other end of each sliding groove is close to the roller (3);
the bearing inner cavity (6) is filled with lubricating grease with the capacity being more than 50% of that of the inner cavity (6), when the sliding block (9) slides in the sliding groove (8), the sliding block (9) drives the sealing ring (5) to rotate by taking the axis of the outer ring (2) as a rotating shaft (122), the sliding block (9) drives the sealing ring (5) to move towards the middle part of the outer ring (2) along the axis direction of the outer ring (2), and when the sealing ring (5) rotates and moves, air in the inner cavity (6) is extruded from the gap (7) firstly, and redundant lubricating grease in the inner cavity (6) is extruded from the gap (7);
An indication arrow (10) is arranged on the end wall of the axis direction of the outer ring (2), a plurality of mark scales (11) are arranged on the outer side wall of the sealing ring (5) far away from the roller (3) along the circumferential direction of the sealing ring, the mark scales (11) respectively represent 100-20% of the filling quantity of lubricating grease in the inner cavity (6), the indication arrow (10) points to the mark scales (11), when the sliding block (9) enters the sliding groove (8), the indication arrow (10) points to the mark scales (11) of 100%, when the sliding block (9) slides in the sliding groove (8), the indication arrow (10) sequentially points to the mark scales (11) of 100% -20%, and when the sliding block (9) slides to the end part of the sliding groove (8), the indication arrow (10) points to the mark scales (11) of 20%.
2. The bearing facilitating accurate filling of grease according to claim 1, wherein: the sealing device is characterized in that a sealing assembly (12) is arranged on the side wall of the sealing ring (5), the sealing assembly (12) is used for sealing or opening the gap (7), a plurality of grease discharging holes (13) are formed in the sealing ring (5), and a plurality of sealing pins (14) used for sealing the grease discharging holes (13) are detachably inserted and connected to the sealing ring (5).
3. The bearing facilitating accurate filling of grease according to claim 2, wherein: the sealing assembly (12) comprises a driving rod (121), a plurality of rotating shafts (122) and sealing plates (123), wherein the rotating shafts (122) are arranged on the side wall of the sealing ring (5) along the circumferential equidistant rotation of the sealing ring (5), the sealing plates (123) are fixedly arranged on the rotating shafts (122), the sealing plates (123) are sequentially arranged along the circumferential direction of the sealing ring (5), the adjacent two sealing plates (123) are abutted to each other, the driving rod (121) is rotatably arranged in the sealing ring (5) in a penetrating manner and fixedly connected with one rotating shaft (122), the driving rod (121) drives the sealing plates (123) to rotate through the rotating shafts (122), the sealing plates (123) are abutted to each other and synchronously rotate, and the sealing plates (123) are rotatably abutted to the outer peripheral wall of the inner ring (1) and plug gaps (7).
4. A bearing for facilitating accurate filling of grease according to claim 3, wherein: be provided with elasticity piece (16) that reset on pivot (122), when rotating actuating lever (121), actuating lever (121) drive shrouding (123) rotate and make clearance (7) open through pivot (122), shrouding (123) act on elasticity piece (16) and make it take place deformation, when unclamping actuating lever (121), elasticity piece (16) act on shrouding (123), shrouding (123) rotate and make clearance (7) shutoff.
5. The bearing facilitating accurate filling of grease according to claim 4, wherein: one end of the sealing plate (123) far away from the rotating shaft (122) is provided with a balancing weight (17) for automatically opening the gap (7) when the bearing rotates.
6. A bearing for facilitating accurate filling of grease according to claim 3, wherein: the side wall of the sealing ring (5) is provided with a push rod (18), and the push rod (18) and the driving rod (121) are symmetrically arranged by taking the center of the sealing ring (5) as a symmetrical point.
7. The bearing facilitating accurate filling of grease according to claim 2, wherein: and when the sealing ring (5) is rotated and the grease is discharged at the gap (7) or the grease discharging hole (13), the inner ring (1) is rotated in the same direction or in different directions.
8. The bearing facilitating accurate filling of grease according to claim 1, wherein: the end wall of the outer ring (2) in the axial direction is provided with a mounting groove (19), the mounting groove (19) is communicated with the end part of the sliding groove (8), and the sliding block (9) is arranged in the sliding groove (8) in a sliding manner through the mounting groove (19).
9. The bearing facilitating accurate filling of grease according to claim 8, wherein: the sliding block (9) is an elastic block, a clamping strip (20) is arranged on one side, close to the mounting groove (19), of the inner side wall of the sliding groove (8) of the outer ring (2), when the sliding block (9) moves to the clamping strip (20), the clamping strip (20) abuts against the sliding block (9) in the sliding groove (8), and when the sealing ring (5) continues to drive the sliding block (9) to move, the sliding block (9) moves through the clamping strip (20).
10. The bearing facilitating accurate filling of grease according to claim 1, wherein: the retainer (4) comprises a first frame body (41), a second frame body (42) and a plurality of fixing pieces (43), the fixing pieces (43) are fixedly connected with the first frame body (41) and the second frame body (42), a plurality of arc-shaped portions (22) used for limiting the rollers (3) are formed on the first frame body (41) and the second frame body (42), avoiding holes (21) are formed in the end portions, along the axis direction of the outer ring (2), of the arc-shaped portions (22), and the rollers (3) are located in the avoiding holes (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410197387.8A CN117759631B (en) | 2024-02-22 | 2024-02-22 | Bearing convenient to accurate filling lubricating grease |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410197387.8A CN117759631B (en) | 2024-02-22 | 2024-02-22 | Bearing convenient to accurate filling lubricating grease |
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| Publication Number | Publication Date |
|---|---|
| CN117759631A CN117759631A (en) | 2024-03-26 |
| CN117759631B true CN117759631B (en) | 2024-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202410197387.8A Active CN117759631B (en) | 2024-02-22 | 2024-02-22 | Bearing convenient to accurate filling lubricating grease |
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|---|---|---|---|---|
| FR2647182A1 (en) * | 1989-05-22 | 1990-11-23 | Cit Alcatel | DEVICE FOR THE GREASE SUPPLY OF MULTIPLE BEARINGS |
| JPH058043U (en) * | 1991-07-22 | 1993-02-02 | 光洋精工株式会社 | Bearing lubricator |
| US6023961A (en) * | 1998-04-02 | 2000-02-15 | Reliance Electric Industrial Company | Micro-viscosity sensor and lubrication analysis system employing the same |
| JP2009041656A (en) * | 2007-08-08 | 2009-02-26 | Jtekt Corp | Rolling bearing device and method of filling grease to rolling bearing device |
| CN103375489A (en) * | 2012-04-26 | 2013-10-30 | 株式会社捷太格特 | Grease supply system for rolling bearing |
| CN203892367U (en) * | 2014-05-29 | 2014-10-22 | 王锋杰 | Novel ball bearing |
| WO2018153417A1 (en) * | 2017-02-21 | 2018-08-30 | Vestas Wind Systems A/S | Wind turbine main rotor arrangement with integrated lubrication facility |
| CN112460149A (en) * | 2020-12-14 | 2021-03-09 | 中车株洲电机有限公司 | Sealing structure for bearing lubrication |
| CN114251592A (en) * | 2020-09-22 | 2022-03-29 | 郑州奥特科技有限公司 | Grease injection pump and pump head and plunger pair thereof |
-
2024
- 2024-02-22 CN CN202410197387.8A patent/CN117759631B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2647182A1 (en) * | 1989-05-22 | 1990-11-23 | Cit Alcatel | DEVICE FOR THE GREASE SUPPLY OF MULTIPLE BEARINGS |
| JPH058043U (en) * | 1991-07-22 | 1993-02-02 | 光洋精工株式会社 | Bearing lubricator |
| US6023961A (en) * | 1998-04-02 | 2000-02-15 | Reliance Electric Industrial Company | Micro-viscosity sensor and lubrication analysis system employing the same |
| JP2009041656A (en) * | 2007-08-08 | 2009-02-26 | Jtekt Corp | Rolling bearing device and method of filling grease to rolling bearing device |
| CN103375489A (en) * | 2012-04-26 | 2013-10-30 | 株式会社捷太格特 | Grease supply system for rolling bearing |
| CN203892367U (en) * | 2014-05-29 | 2014-10-22 | 王锋杰 | Novel ball bearing |
| WO2018153417A1 (en) * | 2017-02-21 | 2018-08-30 | Vestas Wind Systems A/S | Wind turbine main rotor arrangement with integrated lubrication facility |
| CN114251592A (en) * | 2020-09-22 | 2022-03-29 | 郑州奥特科技有限公司 | Grease injection pump and pump head and plunger pair thereof |
| CN112460149A (en) * | 2020-12-14 | 2021-03-09 | 中车株洲电机有限公司 | Sealing structure for bearing lubrication |
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|---|---|
| CN117759631A (en) | 2024-03-26 |
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